BioStor
GBIF occurrence 175704005 from dataset Herpetology Collection (University of Kansas Biodiversity Research Center)
Ptychohyla zophodes (Animalia:Amphibia:Hylidae)
 | New species of stream-breeding hylid frogs from the northern versant of the highlands of Oaxaca, Mexico Jonathan A Campbell and William E Duellman (2000) Scientific Papers Natural History Museum the University of Kansas 16: 1-28 |
 | A review of the Middle American tree frogs of the genus Ptychohyla W E Duellman (1963) University of Kansas Publications. Museum of Natural History 15: 297-349 |